Oculus rift motion controller buttons

How do I setup motion controller buttons? I created a blueprints pawn per the tutorial and I’m able to look around and see my motion controllers in VR… but the buttons do nothing. I’m able to use Input buttons for keyboard, mouse, xbox 360 controller, but oculus rift motion controller buttons don’t trigger an event.

PS here’s the tutorial I followed it and it works for HUD and I can see the motion controllers in the game, but the buttons do nothing … https://docs.unrealengine.com/en-us/Platforms/VR/MotionController

Update: the problem was that UMG had input focus… but now I am wondering how can I have UMG open but still get input from the controllers?